Cell Survival Processes

Name:

Date:

Page 1: How Cells Stay Alive

Directions: Use the word bank and model materials. Read each step aloud with a partner. Complete the steps in order.

1. Identify what the cell needs. 2. Match the inputs to the outputs. 3. Draw or describe arrows showing movement. 4. Label where waste leaves the cell. 5. Check your model against each step.

Word Bank: glucose, oxygen, usable energy, carbon dioxide, water, waste, cell division, growth, repair, new cells

Three-Process Organizer

Energy: Cellular Respiration

Purpose: What does this process provide for the cell?

Inputs: __________ and __________

Outputs: __________ and __________

Arrow or sequence:

Waste Removal

Purpose: Why must a cell remove waste?

Input or waste: ____________________

Output or movement: _______________

Arrow or sequence:

Reproduction: Cell Division

Purpose: What does cell division make possible?

Input or starting cell: ______________

Output: ____________________________

Arrow or sequence:

Sentence frame: Cellular respiration uses __________ and __________ to release usable energy. It produces __________ and __________.

Page 2: Apply the Model

Directions: Read each scenario. Identify the process that best explains it. Use evidence from your organizer or model.

1. An active muscle cell needs more energy while a person is running. Which process is most important? Explain using an input and an output.

Cellular respiration

Waste removal

Cell division

Evidence and explanation: The cell uses ____________________ and ____________________ to ____________________.

2. A cell is surrounded by excess waste. Which process is most important? Explain why the waste must move out.

Cellular respiration

Waste removal

Cell division

Sentence frame: Waste removal helps the cell stay alive because ________________________________.

3. A cut in the skin needs new cells for repair. Which process is most important? Show the sequence in words.

Cellular respiration

Waste removal

Cell division

Sequence: One cell → ____________________ → ____________________

4. How do cells stay alive? Write an organized explanation about energy, waste removal, and reproduction. Use at least two accurate details from your model.

Sentence frame: Cells stay alive by ________________. First, ________________. In addition, ________________. Finally, ________________.

5. Exit Ticket: Explain one way a cell obtains energy and one way it stays healthy by removing waste or making new cells.